a punch punch

A punching and punching technology, applied in the field of punching parts, can solve the problems of poor wear resistance, strength and corrosion resistance, increase the labor intensity of operators, and keep the overall cost high, and achieve high hardness and high temperature resistance. The effect of improving layer strength and improving service life

Active Publication Date: 2019-04-26
南京采青五金制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wear resistance, strength and corrosion resistance of traditional material punching rods are quite poor, resulting in a low service life, and it is easy to damage the stamping components, resulting in unnecessary waste in actual use, which not only increases the labor intensity of the operator, but also Comprehensive cost remains high

Method used

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Examples

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Embodiment 1

[0023] A punch rod for a punching machine and a manufacturing method thereof, comprising a punch rod body and a surfacing layer on the punching operation end face of the punch rod body, and a laser shock layer is provided on the punch rod body surface except for the punch rod body stamping operation end face,

[0024] The punch rod manufacturing method includes the following steps: adding copper alloy smelting raw materials into the melting furnace, controlling the furnace temperature at 1140°C, after the raw materials are completely melted, the temperature drops to 1040°C, adding a deoxidizer, and the deoxidizer is fully mixed with the melt After that, let it stand for 5-10 minutes, add covering agent, and let it stand for 10-15 minutes; remove the slag, lower the temperature to 1020-1030°C, stir and add refining agent, the amount of refining agent added is 8- 10kg, the refining agent includes the following components by weight: 54 parts of calcium fluoride, 12 parts of calciu...

Embodiment 2

[0028] A punch rod for a punching machine and a manufacturing method thereof, comprising a punch rod body and a surfacing layer on the punching operation end face of the punch rod body, and a laser shock layer is provided on the punch rod body surface except for the punch rod body stamping operation end face,

[0029]The punch rod manufacturing method includes the following steps: adding copper alloy smelting raw materials into the melting furnace, controlling the furnace temperature at 1135°C, after the raw materials are completely melted, the temperature drops to 1050°C, adding a deoxidizer, and the deoxidizer is fully mixed with the melt After that, let it stand for 5-10 minutes, add covering agent, and let it stand for 10-15 minutes; remove the slag, lower the temperature to 1020-1030°C, stir and add refining agent, the amount of refining agent added is 8- 10kg, the refining agent comprises the following components by weight: 60 parts of calcium fluoride, 15 parts of calciu...

Embodiment 3

[0033] A punch rod for a punching machine and a manufacturing method thereof, comprising a punch rod body and a surfacing layer on the punching operation end face of the punch rod body, and a laser shock layer is provided on the punch rod body surface except for the punch rod body stamping operation end face,

[0034] The punch rod manufacturing method includes the following steps: adding copper alloy smelting raw materials into the melting furnace, controlling the furnace temperature at 1130°C, after the raw materials are completely melted, the temperature drops to 1055°C, adding a deoxidizer, and the deoxidizer is fully mixed with the melt After that, let it stand for 5-10 minutes, add covering agent, and let it stand for 10-15 minutes; remove the slag, lower the temperature to 1020-1030°C, stir and add refining agent, the amount of refining agent added is 8- 10kg, the refining agent comprises the following components by weight: 70 parts of calcium fluoride, 15 parts of calci...

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Abstract

The invention discloses a punching rod of a punching machine. The punching rod comprises a punching rod body and a surfacing layer on a punching working end surface of the punching rod body, wherein a laser shock layer is arranged on the surface of the punching rod body and outside the punching working end surface of the punching rod body. According to the punching rod disclosed by the invention, a deoxidizing agent and a covering agent are added during a smelting process for a copper alloy and the melt liquid of the copper alloy is adequately alloyed during a refining process, so that the mechanical strength of the copper alloy is increased; the punching rod better bears an axial pressure as a support main body of a punching tool, and the service life of the punching rod is prolonged; dense and uniform staggered structures are generated on the surface of the punching rod body after laser shock is enhanced, and a staggered density is increased, so that the strength of a surface layer of the punching rod is increased; and moreover, staggered movement of the punching rod while bearing the pressure is prevented, so that the probability of cracks is lowered.

Description

technical field [0001] The invention relates to a punch rod of a punching machine and a manufacturing method thereof, belonging to the field of punching machine parts. Background technique [0002] Punch rods are important accessories in cold heading dies. With the demand for production efficiency in economic and social development, high-performance punch pins and punch rods are widely used. The punch rod materials must have good strength, high wear resistance, high resistance Thermal fatigue strength and good toughness and high temperature oxidation resistance. The wear resistance, strength and corrosion resistance of traditional material punching rods are quite poor, resulting in a low service life, and it is easy to damage the stamping components, resulting in unnecessary waste in actual use, which not only increases the labor intensity of the operator, but also The overall cost remains high. Contents of the invention [0003] In order to overcome the above existing d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21J13/02B23K9/04B23K9/235B23K26/00C22C9/00C22C9/02C22C19/03
CPCB21J13/02B23K9/048B23K9/235B23K26/356C22C9/00C22C9/02C22C19/03
Inventor 黄国新
Owner 南京采青五金制品有限公司
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